Recently, investors and entrepreneurs gathered in San Francisco for the 4th Annual Social Capital Markets (SoCAP) Conference, an event dedicated to increasing the flow of capital to social good. It’s part of a new form of capitalism that seeks to harness the power of the private market system to support social/environmental impact.

Editor’s note: Blog Action Day is an annual event, a day on which bloggers worldwide focus on one topic. The goal is create discussion around important social issues, ones that impact us all whether we realize it or not: climate change, water, poverty. This year, the topic is food. Sunday, October 16 is World Food Day, dedicated to alleviating hunger. Your choices, your values can help.